How can I fake a part of domain?

2010-06-23 Thread Peter Macko

How can I "fake" a part of domain?
Explanation of what I mean:
- There is example.com domain somewhere on internet (not under my control) that 
contains:   www.example.com  IP: 1.2.3.4www2.example.com ...
IP: 11.22.33.44
- I have local DNS; and for my local network I fake to have example.com domain.
- I would like to configure my local DNS (BIND) to: 1. return real IP 
(1.2.3.4) of www.example.com  2. return fake IP (11.11.11.11) of 
www2.example.com 3. return IP (99.99.99.99) of www3.example.com that do not 
really exists
No 1. have to forward the request to the real example.com DNS,but No 2. and 3. 
should fake the result.
Thank you.
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DNS records visible only for LAN computers

2009-11-15 Thread Peter Macko

Setup:I have a domain example.com that is hosted on DNS under control of my 
internet provider.Web server www.example.com is hosted by another company.I 
have setup a local DNS for computers on my LAN. I have a LDAP server on LAN.
Question:I want to make LDAP visible only for computers on LAN without altering 
DNS (of the internet provider).The name of LDAP server should be 
ldap.example.com. Is it possible to do it?
I can think of two solutions:1) I could create master zone for example.com on 
DNS (on LAN). This way I have to create A record for www.example.com,but if 
internet provider changed ip address of the web-server, computers on lan would 
not reachwww.example.com and I would have to update A record on local DNS.
2) Another solution is to create zonefile for subdomain local.example.com on 
LAN DNS, so ldap.local.example.com.But this is not exactly what I want.
What is the correct solution?
Thank you 
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bind9 behind firewall stopped responding

2009-07-28 Thread Peter Macko
I have a master DNS (bind9) for a domain. It was working until I put it behind 
firewall on a DMZ private subnet. It is setup in the way that from internet the 
DNS maintains its original IP address, that is SAT translated by firewall to 
the DMZ private subnet. I allowed ports 53 TCP/UDP. Should I allow other ports? 
The IP address of the DNS server was changed by putting it on DMZ private 
subnet, could be this the problem? Any ideas?

For testing, I have used some free dns report webpage, ... it is saying that my 
DNS is not responding.

Maybe I am asking something obvious, but I have to solve this until 
tommorow and I do not know where to start looking.

Than you a lot,
Peter


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